Answer:
B
Step-by-step explanation:

subtract 6 from both sides

divide by 2/3(or multiply by 3/2)

and thats your answer
On your papers does it say what x equals?
Use parentheses for M and N

一一一一一
remove parentheses

一一一一一
add like terms
All you need to do is multiply
11 x 12 x 9
=1188